EP0601660A3 - Electronic relay to protect motors and thyristors against symmetric overload, phase unbalance and shortcircuit. - Google Patents

Electronic relay to protect motors and thyristors against symmetric overload, phase unbalance and shortcircuit. Download PDF

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Publication number
EP0601660A3
EP0601660A3 EP9393203408A EP93203408A EP0601660A3 EP 0601660 A3 EP0601660 A3 EP 0601660A3 EP 9393203408 A EP9393203408 A EP 9393203408A EP 93203408 A EP93203408 A EP 93203408A EP 0601660 A3 EP0601660 A3 EP 0601660A3
Authority
EP
European Patent Office
Prior art keywords
shortcircuit
electronic relay
phase unbalance
protect motors
overload
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP9393203408A
Other versions
EP0601660A2 (en
EP0601660B1 (en
Inventor
Ibarguengoitia Francisco Gomez
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fanox Electronic SL
Original Assignee
Fanox Electronic SL
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fanox Electronic SL filed Critical Fanox Electronic SL
Publication of EP0601660A2 publication Critical patent/EP0601660A2/en
Publication of EP0601660A3 publication Critical patent/EP0601660A3/en
Application granted granted Critical
Publication of EP0601660B1 publication Critical patent/EP0601660B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/006—Calibration or setting of parameters
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/20—Instruments transformers
    • H01F38/22—Instruments transformers for single phase ac
    • H01F38/28—Current transformers
    • H01F38/30—Constructions
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
    • H02H7/085—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against excessive load
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
    • H02H7/09—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against over-voltage; against reduction of voltage; against phase interruption

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Relay Circuits (AREA)
  • Protection Of Generators And Motors (AREA)
  • Motor And Converter Starters (AREA)
EP93203408A 1992-12-09 1993-12-04 Electronic relay to protect motors and thyristors against symmetric overload, phase unbalance and shortcircuit Expired - Lifetime EP0601660B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES9202504 1992-12-09
ES09202504A ES2065241B1 (en) 1992-12-09 1992-12-09 ELECTRONIC RELAY FOR MOTOR AND THYRISTOR PROTECTION AGAINST SYMMETRICAL OVERLOAD, PHASE UNBALANCE AND SHORT CIRCUIT.

Publications (3)

Publication Number Publication Date
EP0601660A2 EP0601660A2 (en) 1994-06-15
EP0601660A3 true EP0601660A3 (en) 1994-08-17
EP0601660B1 EP0601660B1 (en) 1997-04-02

Family

ID=8279066

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93203408A Expired - Lifetime EP0601660B1 (en) 1992-12-09 1993-12-04 Electronic relay to protect motors and thyristors against symmetric overload, phase unbalance and shortcircuit

Country Status (4)

Country Link
US (1) US5365394A (en)
EP (1) EP0601660B1 (en)
DE (1) DE69309405T2 (en)
ES (1) ES2065241B1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6211792B1 (en) 1999-08-13 2001-04-03 JADRIć IVAN Method and apparatus detecting a failed thyristor
US6404346B1 (en) 1999-08-13 2002-06-11 York International Corporation Method and apparatus for detecting a failed thyristor
US6404265B1 (en) 1999-08-13 2002-06-11 York International Corporation Highly efficient driver circuit for a solid state switch
WO2006047656A2 (en) * 2004-10-26 2006-05-04 Technology Research Corporation Apparatus for controlling interconnect switch
US7623329B2 (en) * 2005-01-04 2009-11-24 Technology Research Corporation Leakage current detection and interruption circuit with improved shield
CN101138139A (en) * 2005-01-04 2008-03-05 科技研究公司 Leakage current detection and interruption circuit
US7423854B2 (en) * 2006-07-07 2008-09-09 Technology Research Corporation Interruption circuit with improved shield
KR100995302B1 (en) * 2007-05-10 2010-11-19 가부시키가이샤 무라타 세이사쿠쇼 Composite high-frequency component
WO2010011321A1 (en) * 2008-07-24 2010-01-28 Technology Research Corporation Leakage current detection and interruption circuit powered by leakage current
CN102194607B (en) * 2011-04-06 2013-12-11 北京大华无线电仪器厂 Device for controlling switches of relays
CN104934974A (en) * 2015-07-01 2015-09-23 国网智能电网研究院 Controllable phase shifter with short-circuit current limiting function
CN113741310B (en) * 2021-09-16 2023-04-07 许昌学院 Big data information monitoring system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2066597A (en) * 1979-08-28 1981-07-08 Gen Electric Protecting electric motors
US4345288A (en) * 1981-05-04 1982-08-17 Square D Company Solid state over-current protective apparatus for a power circuit
FR2584877A1 (en) * 1985-07-29 1987-01-16 Gen Electric Circuit for adjusting the trip functions of an electronic circuit breaker
US4683513A (en) * 1986-04-07 1987-07-28 Westinghouse Electric Corp. Dual current transformer current sensing method and sensor
JPS62291012A (en) * 1986-06-10 1987-12-17 Omron Tateisi Electronics Co Current transformer

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH573180A5 (en) * 1974-10-01 1976-02-27 Sprecher & Schuh Ag
US4584623A (en) * 1983-11-07 1986-04-22 Watsco, Inc. Electrical load protection device
US4710844A (en) * 1985-07-29 1987-12-01 General Electric Company Electronic circuit breaker trip function adjusting circuit
JP3020499B2 (en) * 1988-01-11 2000-03-15 株式会社日立製作所 Gas insulated switchgear
ES2016538A6 (en) * 1989-10-17 1990-11-01 Hurtado Moja Miguel Angel Improvements introduced in the subject of main patent no. 8700022/9 for: Electronic relay for the protection of three- phase motors against overcurrents and phase unbalance

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2066597A (en) * 1979-08-28 1981-07-08 Gen Electric Protecting electric motors
US4345288A (en) * 1981-05-04 1982-08-17 Square D Company Solid state over-current protective apparatus for a power circuit
FR2584877A1 (en) * 1985-07-29 1987-01-16 Gen Electric Circuit for adjusting the trip functions of an electronic circuit breaker
US4683513A (en) * 1986-04-07 1987-07-28 Westinghouse Electric Corp. Dual current transformer current sensing method and sensor
JPS62291012A (en) * 1986-06-10 1987-12-17 Omron Tateisi Electronics Co Current transformer

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 12, no. 187 (E - 615) 31 May 1988 (1988-05-31) *

Also Published As

Publication number Publication date
EP0601660A2 (en) 1994-06-15
ES2065241A1 (en) 1995-02-01
DE69309405D1 (en) 1997-05-07
EP0601660B1 (en) 1997-04-02
US5365394A (en) 1994-11-15
ES2065241B1 (en) 1995-10-01
DE69309405T2 (en) 1997-12-04

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